| First generation (1972–1979) |
Sixth generation (1996-2000) |
| Second generation (1979–1983) |
Seventh generation (2001–2005) |
| Third generation (1983–1987) |
Eighth generation (2006–2011) |
| Fourth generation (1987–1991) |
Ninth generation (2012–2015) |
| Fifth generation (1992–1995) |
Tenth generation (2016–Present) |
